Ungraded vs Grade 8.0 Invincible [Blank Sketch] #128 (2016): price difference
Invincible [Blank Sketch] #128 (2016) value — Ungraded $202 vs Grade 8.0 $234. Grade 8.0 sells for 1.16× Ungraded (+16%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 1.16× (+16%) the Ungraded price — a $32 difference per comic.
Grade 8.0 sells for 1.2× (+20%) the Grade 6.0 price — a $39 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Invincible [Blank Sketch] #128 (2016), the jump from Ungraded to Grade 8.0 is worth $32 (1.16×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).